Improvement in dumping-cars



J. E. aims. Dumping-Cars.

Amnunsf Patented Dec. 29

THE GRAPHIC CO. FHOTO-LITH-3& 4! PARK PLAC N- llllll k W 1 NNA.

WITNESSES n'rrnn STATES? PATENT rrrcn.

JOHN E. Banis er CHICAGO, ILLINOIS.

IMPROVEMENT lN DUMPlNG-CARS.

Specification forming part of Letters Patent No. 158,236, dated December 29, 1874; application filed October 10, 1874.

To all whom it may concern:

Be it known that 1, JOHN E. BEMIS, of Chicago, in the county of (look and State of Illinois, have invented a new and Improved Dumping-Oar, of which the following is a specification 1n the accompanying drawing, Figure 1 represents a bottom view of the trucks and gear mechanism of my improved platform dumping-car; Fig. 2, a top view of the trucks with tilting platform, showing mode of throwing it in and out of gear; Fig. 3, a vertical longitudinal section of the platform dumpingcar, taken on the line 0 c, Fig. 2; Fig. 4. a vertical transverse section of the same on line as 00, Fig. 3; and Fig. 5, a detail side View of the sliding spring-clutch.

Similar letters of reference indicate corresponding parts.

The object of my invention is to soimprove the platform dumping-car which was patented to me under date of May 5, 1874, and numbered 150,460, that the mode of throwing the tilting platform in and out of gear with the trucks is greatly simplified, and the dumping and discharging of the load facilitated.

The invention will first be fully described, and then pointed outin the claims.

In the drawing, A represents a freight-car platform of the usual construction, made separate and detachable from the trucks B, on which it is supported by rockers U. The cartrucks B are connected by longitudinal stiffening-rods a, which are extended beyond the trucks at both ends, for carrying the supplementary platforms A at the outer ends thereof. Rods a support centrally between the trucks a lateral block, b, which is centrally provided with a pivot-bolt, (1, having keyed to its upper end a lever-arm, D, that swings freely on block b, and is retained in the direction of the longitudinal aXis of the car by a stop-pin, d. A broad lateral supporting-piece, l), is keyed to the lower end of pivot-bolt d, under right angles ,to the upper lever, D. The lower piece, D, serves to support the ends of spring-acted levers E, which are hinged to the center pieces, B, of the truckframes. A downward-projecting curved guide rod, e, of each lever E engages a pivoted lever-rod,f,

- that connects by its forked end, like a swivelpoint, with a sleeve, 9, sliding readily on the axle of the truck-wheels. The pivoted sleevelever f is carried by a strong spiral spring, f, with the sleeve 9, toward ashoulder, g, of the axle, and also pressed against the curved guide-rod e of lever E, for retaining it thereby in lowered position. The sleeve g acts in this position on a spring-rod, h, which is set into a recess of the axle and of the shoulder 9, so as to bind the same to the axle. The end of spring-rod h projects beyond the shoulder 9 into a recess, h, of a pinion or bevel-wheel, l, which is placed loosely on the truck-axle. Spring-rod It acts in the nature of a clutch on bevel-wheel lwhenever, by the raising of lever E, the sleeve 9 is carried 'sidewise, so as to release the spring rod and admit its entering into the recess h of the bevel-wheel l, which thereby rotates with the truck-axle when the same is in motion. Bevel-wheel 1 gears then with a horizontal conical wheel, l of vertical shaft 1 which is supported in standards at, attached to the truck-frame. A bevel-wheel at the upper end of the shaft l intermeshes, then, with a lateral-toothed segment, which is applied stationary to the under side of the platform A, carrying thereby the platform to either side, in the manner more fully set forth in my former patent. The upper bevelwheels and the toothed segments are for the purpose of simplification; (Not shown in the drawing.) Lever E is further provided with a brake-arm, a, which .projects over the horizon tal bevelwheel l and enters radial grooves n of the same, so as to bind firmly on the wheel and hold it rigidly in position, securing thereby the steady posit-ion of the intermeshing segment, and preventing the sliding of the platform to either side. The levers E are arranged at diagonally opposite sides of the car-trucks, and placed, for the purpose of throwing the loose bevel-wheels into gear, on the ends of the lateral supporting-piece D. The motion of the cars, by means of a slight backing of the locomotive, will then tilt the platform and dump the load on the same, in the manner set forth in the aforesaid patent. After the load is discharged the platform tilts back on the trucks, and is carried into regular position by the forward motion of the locomotive. Suitable pivoted and weighted dogs 2 wages are applied to the under side of platform A in such a manner that on the return motion of the same, after having been tilted to either side, one of them engages the end of upper lever D and swings the same sidewise, together with the lower supporting-piece, D, releasing thereby the ends of levers E, which are depressed by the action of the spiral springs, so as to throw the loose bevel-wheels Z out of gear, and brake the upper gearwheels and segments. In this manner the more complicated mechanism for locking the platform to the truck-frames is dispensed with, and a simpler and more effective throwilig-in-and-out-ofgear mechanism substituted. The side and end walls of the dumping-car are constructed of two longitudinal semi-sections, H, which are pivoted to central supports or standards 12 of the platform A, for the purpose of swinging readily thereon. Projecting side strips or lugs 19 are attached to the outer end walls of the semi-sections H, so as to come in contact with the supplementary end platform A on the tilting of the platform. The semi-section H, on the side to which the load is to be dumped, is thereby swung up to sufficient height above the platform to admit the passage of the load for dumping. The central standards may be secured to the platform in detachable manner, so that the cars may be used without the frame, if desired. Upright side guide-rods of the platform secure the steady position of the semi-sections until they are swung up for loading or unloadirg the car.

Having thus described my invention, what 7 I claim as new, and desire to secure by Letters Patent, is

1. In dumping-cars, the combination of pivoted spring-acted lever E, to operate the sliding clutch mechanism of the platformtilting gear-wheels, with the lateral supporting-piece D, pivoted to central block, b, for the purpose of throwing tilting mechanism into gear, substantially as specified.

2. The pivoted lever E, having curved guidearm 0, in combination with pivoted springlever f, sliding sleeve 9, spring-rod h, and loose bevel-wheel l, for clutching or releasing bevel-wheel, and throwing it in and out of gear, as set forth.

3. The pivoted lever-arm E, having brakerod n, in combination with horizontal bevelwheel l provided with radial top grooves a, for acting as a brake and retaining platform in position on trucks, substantially as described.

4.. The combination of weighted dogs G, pivoted to platform A, with lever-arm D, placed at right angles to lower. lever-supporting piece, D, for carrying it sidewise and releasing the levers E for locking ,platform on trucks, substantially as set forth.

JOHN E. BEM[S.'

Witnesses:

JOSEPH W. LYON, P. W. BEMIs. 

